0-cot-1-x-2-dx-

Question Number 56358 by harish 12@g last updated on 15/Mar/19

\int_{0}^{\infty} {(\cot^{- 1} x)}^{2} d x

Commented by MJS last updated on 15/Mar/19

= π \ln 2

Commented by harish 12@g last updated on 16/Mar/19

f u l a n s .

Commented by MJS last updated on 16/Mar/19

I approximated and then tried if my result

is something exact \dots

the integral cannot be solved elementarily

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